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Notes

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gemstone - a hard mineral that has a glassy luster
ore - a rock that contains metal and economically useful mineral
smelting - a prosses that seporates ore into sluge and metal
alloy - a solid that has two different minerals conbinded together

Outline

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The Use of Minerals

• Gemstones
• Metals
• Other useful minerals

Ores

• ore
• chalcopyrite

Prospecting

• prospector

Mining

• there are three types
• strip mines, open pit mines, shaft mines
• not good for the enviroment

Smelting

• alloy
• seperates iron metal from hematite